Great St Lawrence Sea Conditions and Tide Table

Great St Lawrence Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 07:26 AM and sunset is at 05:22 PM.

Days 1–3 Weather Summary

Mild at first with light rain (total 3mm) on Fri morning followed by colder weather and light fall of snow, heaviest on Sun night. Icy conditions (max 5°C on Fri morning, min -7°C on Sun night). Winds decreasing (gales from the SSE on Fri morning, calm by Sun afternoon).

Days 4–6 Weather Summary

A light covering of new snow, mostly falling on Mon morning. Air temperatures will be well below freezing (max -6°C on Tue morning, min -10°C on Wed night). Winds decreasing (strong winds from the WNW on Mon afternoon, moderate winds from the NNW by Wed night).

Days 7–9 Weather Summary

A light fall of snow, heaviest on Fri afternoon. Turning milder with light rain (total 9mm) on Fri night. Freeze-thaw conditions (max 3°C on Fri night, min -7°C on Thu morning). Winds increasing (light winds from the W on Thu night, gales from the WNW by Sat morning).

Days 10–12 Weather Summary

A heavy fall of snow, heaviest during Mon morning. Becoming milder with light rain (total 4mm) on Mon morning. Freeze-thaw conditions (max 5°C on Mon morning, min -8°C on Sun morning). Winds increasing (light winds from the NNW on Sun night, gales from the WSW by Mon afternoon).

Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
High Tide
3:52PM1.55m
4:56AM2.00m
5:06PM1.54m
6:04AM2.01m
6:23PM1.58m
7:05AM2.04m
7:25PM1.67m
7:58AM2.06m
8:12PM1.75m
8:42AM2.07m
8:51PM1.82m
9:20AM2.05m
9:26PM1.86m
9:55AM2.00m
10:00PM1.88m
10:29AM1.93m
10:35PM1.89m
11:01AM1.85m
11:13PM1.87m
11:34AM1.76m
11:56PM1.84m
12:09PM1.67m
00:44AM1.81m
Low Tide
10:12AM0.90m
10:03PM0.72m
11:24AM0.85m
11:15PM0.69m
12:18PM0.79m
00:09AM0.64m
1:03PM0.73m
00:55AM0.61m
1:44PM0.67m
1:36AM0.60m
2:22PM0.63m
2:15AM0.61m
2:57PM0.59m
2:55AM0.62m
3:32PM0.57m
3:34AM0.65m
4:05PM0.57m
4:13AM0.69m
4:36PM0.58m
4:53AM0.74m
5:07PM0.61m
5:32AM0.80m
5:38PM0.66m
Wave
height (m) 
direction
period (s) 
4
S
9
3.5
S
10
3
S
10
3
SSW
10
3
SSW
10
2.5
SSW
10
1.7
SSW
10
1.5
SSW
9
1.5
S
7
2.2
SE
9
2.4
S
11
2.1
SW
10
2.1
WSW
9
2
WSW
8
2.5
WSW
9
2.3
WSW
7
1.3
WSW
8
1
SW
7
1.5
W
5
1.4
W
5
0.8
S
10
1
S
9
2.5
SE
7
3.5
S
10
4
SW
11
3.5
SW
11
3
WSW
10
2.3
W
8
1.7
WSW
9
0.8
SW
9
3.5
SE
8
7.5
SW
13
6
SW
13
5.5
SW
13
5
SW
12
4.5
SW
12
light snow
light rain
part cloud
cloud
part cloud
part cloud
cloud
cloud
mod snow
snow showers
cloud
part cloud
cloud
part cloud
snow showers
light snow
cloud
part cloud
cloud
part cloud
cloud
light snow
heavy snow
rain showers
part cloud
cloud
cloud
part cloud
part cloud
snow showers
mod snow
cloud
light snow
light snow
light snow
light snow
light snow
light rain
some clouds
cloudy
some clouds
some clouds
cloudy
cloudy
mod snow
snow shwrs
cloudy
some clouds
cloudy
some clouds
snow shwrs
light snow
cloudy
some clouds
cloudy
some clouds
cloudy
light snow
heavy snow
rain shwrs
some clouds
cloudy
cloudy
some clouds
some clouds
snow shwrs
mod snow
cloudy
light snow
light snow
light snow
light snow
 km/h
60
S
40
SW
35
W
40
W
40
W
30
W
20
WSW
5
ESE
40
N
40
NW
45
WNW
40
WNW
40
WNW
40
WNW
40
WNW
40
WNW
25
NW
30
NW
40
WNW
30
WNW
10
W
25
SSE
60
ESE
55
WNW
60
WNW
55
WNW
55
WNW
45
WNW
30
WNW
10
ESE
55
SSW
75
WSW
65
WSW
65
W
60
W
60
W
 mm 
2.0
1.0
9
4
max°C
5
3
1
-2
-2
-3
-3
-3
-4
-9
-8
-7
-6
-6
-8
-6
-6
-7
-6
-6
-5
-4
-1
3
-3
-5
-6
-8
-7
-5
5
0
-6
-6
-6
-7
Moonrise
11:51
12:47
1:55
3:09
4:25
5:38
6:49
7:56
9:03
10:09
11:15
Moonset
4:04
5:11
6:05
6:46
7:16
7:38
7:57
8:12
8:26
8:40
8:55
9:12
Sunrise
7:26
7:26
7:24
7:22
7:22
7:20
7:18
7:16
7:15
7:13
7:11
7:09
Sunset
5:22
5:24
5:25
5:28
5:29
5:30
5:32
5:34
5:36
5:37
5:38
5:39
Today's sea temperature in Great St Lawrence is 2.1 °C (Statistics for 07 Feb 1981-2005 – mean: 0.4 max: 1.7 min: -0.6°C)
Issued (local time): 1 am Friday 07 Feb 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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